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CP violation in weak interactions from orbifold reduction: possible unification structures

N. Cosme·J. -M. Frere
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Abstract

We present a mechanism to generate complex phases from real 4+1 dimensional couplings in a model of weak interactions through dimensional reduction of a gauge theory. The orbifolding of a 4+1 dimensional Sp(4) \times U(1) group is the minimal setup which provides both CP violation and an SU(2) \times U(1) structure. We show that grand unification requires at least SO(11).

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N. Cosme, J. -M. Frere. 2003-12-08. CP violation in weak interactions from orbifold reduction: possible unification structures. https://doi.org/10.1103/physrevd.69.036003

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